Tuttibella, I’m so glad to hear the good news! You appear to have found the right vet for Lucy Belle; one with the right mix of bedside manners with Lucy Belle, good explanations of what’s going on for you, and solid technical knowledge and experience. I’m so relieved to know Lucy Belle’s treatment approach and plan are in such good hands!
I’ve found that the lump from subcutaneous fluids goes away quickly if the cat is very dehydrated; more slowly if the cat was not so dangerously dehydrated. I’ve seen an entire bag of fluid get absorbed in as little as 2 hours, but I suspect Lucy Belle will have little to no leftover lumpage by morning.
If Lucy Belle continues to have a tiny bladder as she grows into adulthood, on your next visit you might ask what sorts of things you might watch for in the future. Having such a condition might make her predisposed, just based on her anatomy, to specific issues. But I’m not a vet and I don’t know what those issues might be.
About 15 years ago, my cat Mal was discovered, at necropsy, to have small and somewhat oddly shaped kidneys. This knowledge probably wouldn’t have changed diagnosis or treatment, but it certainly contributed to her going downhill as fast as she did. And it might have served as a caution to the vet, to keep a very close eye on her bloodwork, esp. for bilirubin numbers, or other byproducts/wastes in the bloodstream.
Congratulations and breathe a little easier, Tuttibella! It sounds like you’ve found the best veterinarian for Lucy Belle. Way to go!